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/*
libparted/fs/f2fs - Flash-Friendly File System
Copyright (C) 2020-2022 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _F2FS_H
#define _F2FS_H
#define F2FS_MAGIC 0xF2F52010
#define F2FS_MAX_VOLUME_NAME 512
#define F2FS_SB_OFFSET 0x02
struct f2fs_super_block {
uint32_t magic; /* Magic Number */
uint16_t major_ver; /* Major Version */
uint16_t minor_ver; /* Minor Version */
uint32_t log_sectorsize; /* log2 sector size in bytes */
uint32_t log_sectors_per_block; /* log2 # of sectors per block */
uint32_t log_blocksize; /* log2 block size in bytes */
uint32_t log_blocks_per_seg; /* log2 # of blocks per segment */
uint32_t segs_per_sec; /* # of segments per section */
uint32_t secs_per_zone; /* # of sections per zone */
uint32_t checksum_offset; /* checksum offset inside super block */
uint64_t block_count; /* total # of user blocks */
uint32_t section_count; /* total # of sections */
uint32_t segment_count; /* total # of segments */
uint32_t segment_count_ckpt; /* # of segments for checkpoint */
uint32_t segment_count_sit; /* # of segments for SIT */
uint32_t segment_count_nat; /* # of segments for NAT */
uint32_t segment_count_ssa; /* # of segments for SSA */
uint32_t segment_count_main; /* # of segments for main area */
uint32_t segment0_blkaddr; /* start block address of segment 0 */
uint32_t cp_blkaddr; /* start block address of checkpoint */
uint32_t sit_blkaddr; /* start block address of SIT */
uint32_t nat_blkaddr; /* start block address of NAT */
uint32_t ssa_blkaddr; /* start block address of SSA */
uint32_t main_blkaddr; /* start block address of main area */
uint32_t root_ino; /* root inode number */
uint32_t node_ino; /* node inode number */
uint32_t meta_ino; /* meta inode number */
uint8_t uuid[16]; /* 128-bit uuid for volume */
uint16_t volume_name[F2FS_MAX_VOLUME_NAME]; /* volume name */
} __attribute__((packed));
#endif
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